Perpetual calendar



C. A. FORD.

PERPETUAL CALENDAR. APPLICATION FILED OCT. 23. 1920.

Patented Jan. 4, 1921.

2 SHEETSSHEET l- I INVENTOR.

Maw,

. ATTORNEY.

.CLAJFORDQ PERPETUAL CALENDAR. ARPL1CATION FILED OCT. 23, 1920.

2 SHEETS- SHEET 2.

INI NTO 04.14% a; BY- 2 4 ATTOIQNEY.

uurrso STATES PATENT omen. Y

CHARLES aroma, or EAST oimNGn, NEW JERSEY.

PERPETUAL CALENDAR.

To'all whom it may concern:

Befi'tknown' that 1, CHA LES A. FORD, a citizen of the United States, anda resident ofEast Orange, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Perpetual Calendars, of which the following is a specification.

endar of the kind known as perpetual cal endars, which is easily operated on account of its simplicity and has but few movable parts, the calendar being adapted to be used from year-to year, the designation of the month and also the columnar arrangement of dates in each month being movable so that the selected dates can be displayed through an opening in a front sheet.

The invention is further designed to pro vide a calendar of this kind in which a cancellation disk is employed which can be swung to' cover the th and 31st of any month in which such concellation is necessary.

The invention further consists of an index pointer which can be shifted to specify any particular date of the month as a reminder or to indicate the current date, such pointer being arranged so that it can indicate the whole monthly designation of days without interfering with the operation of the other parts of the calendar.

The invention is illustrated in the accom-v panyingdrawings, in which Figure 1 is a front View of my improved form of calendar, this form indicating how it can be used on a desk fixture. Fig. 2 is a face view of the disk used to indicate the month. Fig. 3

. is a face view of the cancellation disk. Fig.

4 is a face View of the movable sheet'carrying the monthly designation of dates and the cancellation disk imposed thereon, and Fig. 5' is a top view of the cancellation disk, the movable sheet and themonthly disk.

The calendar comprises a front sheet 10 which can be of any desired size and form,

shown the back of the casing of the clock Specification of Letters Patent.

This invention relates to an improved cal shown at 22 in Fig. 4. I

A finger-piece 23 is supplied to the can- Patented Jan. 4, 1921.

Application filed October 23, 1920. Serial no..418,9e4.

14 acts as a pivotal support on which the movablesheet swings. y

The columnar disposition of dates is so arranged that two monthly arrangements are provided, one in which the first of the month would fall on Saturday, and the other in which the first of the month would fall on Sunday. 'The column shown at 15,

which is that column that contains the beginning of the month, that is, it contains the numbers 1, 8 and 15, 22 and 29, is common to both monthly designations. At the edge of the opening '12, as at 16, are arranged the designations of the days of the week, so

that the movable disk 13 can be swung to indicate the first of a month as coming on any day'of the week.

It will be evident from an inspection of Fig. .4 that the columnar disposition to the left of and including the column 15 requires six rows of figures,,and that designation ex- A cancellation disk 17 is arranged so as to swing-on the same pivot as themovable sheet 13, the cancellation-disk 17 being cut away, as at 18, one edge of which forms a cancellation portion 19 for the lowest column of figures 20 in the monthly desi nation to the left, this portion 19 being o set,

tending-to the right of and including the column-15 requires five.

and a second offset portion 21 can be used to cover designated dates on the fifth row of figures in a columnar arrangement, this cancellation disk being used to cover 30 and 31 shown at 20 in Fig. 4, the part 21 being swung, when necessary, to cover dates on the fifth row of figures, for instance, as

would be necessary to cover 29, 30: and 31 cellation disk 17 so that it can 'be easily 1 manipulated, and the ends 24 of the inner.

portion of the opening '12.co6perate with the finger-pieeef23. to limit the movement of the cancellation disk.

piece 25 is placed on the front of-the mov A suitable fingerable sheet-so that the sheet can be swung.

A disk 26 is pivoted at a suitable place, usually directly 'inrear of the upper part of the movable sheet 13, as, for instance, on the strip 27 shown in dotted outline in Fig.

' 1, and is adapted to display the designation of the month through the opening 28 in the front sheet 10.

It is preferred that these monthly designations have in small numerals the number of days month, and in the form shown in Fig; *1, if the first of May' comes on Saturday and there are 81 days, the cancellation disk is, not used .for cancellation,

' but when June arrives it will be evident that the column indicating the first of the month'is moved to the left, to Tuesday, in

. which case the cancellation disk would be swung to the left t0 cover up the 31 that appears at 529 in Fig. 4; It will also be evident that if February, other than a leap ,,year, is. being designated, if the first of the I month comes on Tuesday, for instance, the

- cancellation disk would be swung to cover 'up also the 30 andthe 29 shown M22 in Fig. 4:, the 30 and 31 illustrated at in Fig. 4 being, of course, in the meantime i' concealed by the front sheet 10.

All that. it is necessary to do, therefore,-

to, indicate any monthly calendar is to move thenumber one'of that day on whiclrthe I month begins, then moving the; cancella- 1 ,tion disk, if necessary, to cover excess dates I that appear for that month.

As a reminder, or to indicate aparticular day, I provide an arm Which is pivoted, as at 31, to the front sheet, the arm being looped so astopermit the passage under it of the finger-plece 23, and a pointer 32 is pivoted to the end of the arm 30 so that the columns it point.

these two pivotal motions permit the swing ing of the end of the pointer to any date in to which it is desired. to have Of course it will be understood that slight changes can be made in the form of the calendar, and it can be suitably ornamented andcan be arranged as a pocket or portable calendar instead of being aff xed, as llustrated, to a desk fixture I claim? i to swing behind the opening and having a columnar disposition of dates thereon to indicate, a' month beginning on Saturday and -.-a month beginning on Sunday, the

' column in which the first day of the month is arranged-being common to both monthly arrangements, the edge of the opening hav- A calendarcomprising a front sheet with, 'adisplay opening, a movable sheet adapted I have hereto set my hand, this 22nd day of October, 1920.

CHARLES A. FORD. 

